British PM David Cameron has met with King Abdullah of Saudi Arabia - the UK's biggest trade partner and arms market in the Middle East. The gulf kingdom has been rattled by recent unrest in the Arab world - and has suppressed protests on home soil as well as elsewhere with ruthless force. During the visit, the British leader and the King of Saudi Arabia discussed shared concerns about Syria, with David Cameron talking about removing the country's President. But senior politics editor at the New Statesman magazine Mehdi Hasan believes Britain has no moral authority to preach democracy to a country which is using lethal force to disperse protests.